What two jobs does an instance's dispatcher do for dialog processing, and what happens if it fails?

When do dynamic work processes start and stop, and how many does the system add at startup?

Which OS command tests the message-server connection and lists available instances and logon groups?

When you define a lock object in the data dictionary, what gets generated automatically?

What does the _SCOPE parameter control on a lock, and what do values 1, 2, and 3 mean?

How can a single multi-screen transaction end up processed by several different dialog work processes?

What do the four ACID properties mean for an SAP LUW?